Summary Make meringues, find out what makes the foam in them. Make other foamy foods. Science content Chemistry: States of Matter, Properties of Materials (K-7) Chemistry: Atoms, Molecules (3-7) Chemistry: Physical Changes, Solutions, Mixtures and Separating (2, 4, 5, 6) Activities in this lesson Meringue Foam molecules Milkshake: foam in food Procedure Make meringues. While they are cooking find out what molecules in them make the foam (the protein in the egg whites). Make other foamy foods: milkshake - blow bubbles into milk to make a foam - the fat in the milk stablizes the bubbles to make the foam gastro foam - pictured is a basil-lecithin foam Grades taught Gr 4 Gr 5
